An anti-establishment view or belief is one which stands in opposition to the conventional social, political, and economic principles of a society. The term was first used in the modern sense in 1958, by the British magazine New Statesman to refer to its political and social agenda. Antiestablishmentarianism is an expression for such a political philosophy. Anti-establishment positions vary depending on political orientation. For example, during the protests of 1968, anti-establishment positions generally emerged from left-wing, socialist, and anarchist circles. In the 2010s however, anti-establishment positions generally emerged from right-wing populist circles.

Right-wing populism, also called national populism and right-wing nationalism, is a political ideology that combines right-wing politics with populist rhetoric and themes. Its rhetoric employs anti-elitist sentiments, opposition to the Establishment, and speaking to or for the "common people". Recurring themes of right-wing populists include neo-nationalism, social conservatism, economic nationalism and fiscal conservatism. Frequently, they aim to defend a national culture, identity, and economy against perceived attacks by outsiders. Right-wing populism has remained the dominant political force in the Republican Party in the United States since the 2010s.